CN101659044B - Rotary clamp type screwdriver and screw - Google Patents
Rotary clamp type screwdriver and screw Download PDFInfo
- Publication number
- CN101659044B CN101659044B CN2009101642423A CN200910164242A CN101659044B CN 101659044 B CN101659044 B CN 101659044B CN 2009101642423 A CN2009101642423 A CN 2009101642423A CN 200910164242 A CN200910164242 A CN 200910164242A CN 101659044 B CN101659044 B CN 101659044B
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- bar
- inner chamber
- shaped
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Abstract
The invention relates to a hardware tool, in particular to a rotary clamp type screwdriver and a screw. The screwdriver consists of a screwdriver handle, a screwdriver head, a screw rod, a screw head, a notch and an inner cavity. The screw head is positioned at the top end of the screw rod and forms a whole body with the screw rod; the outer profile of the screw head is shaped like a cylinder; the screw head is internally provided with the inner cavity; and the cross section of the inner cavity is formed by folding two orthometric bars, a rotundity which has the same circular center as the screw head, and two fans which have central angle being 90 degrees. The top end of the inner cavity is provided with a circular plate which forms a whole body with the screw head; and the circular plate is provided with the notch which is formed by folding a circle-shaped groove and a bar-shaped groove. The bottom end of the screwdriver handle is provided with the screwdriver head which forms a whole body with the screwdriver handle. The rotary clamp type screwdriver and screw preclude that the screwdriver head suddenly slips caused by greater force and improve the safety factor of the operation.
Description
Technical field
The present invention relates to a kind of hardware & tools, particularly relate to a kind of rotary clamp type screwdriver and screw.
Background technology
Existing screwdriver in use; Cutter head embeds in the straight trough on the screw terminal and is rotated operation; But cutter head laterally moves landing often from straight trough in operation, and the notch of having to find accurately again on the screw terminal continues operation, not only trouble, time-consuming; And unexpected landing when firmly big sometimes, injure the damage that hand also can cause parts easily.
Summary of the invention
The present invention provides a kind of rotary clamp type screwdriver and screw that can prevent that driver bit from skidding off from the notch of screw for solving the deficiency of prior art.
The scheme that solves technical problem of the present invention is: the sub-assembly of rotary clamp type screwdriver and screw is made up of knife bar, cutter head, shank of screw, head of screw, notch and inner chamber.Wherein head of screw is in shank of screw top and as a whole with shank of screw.The outline of head of screw is cylindrical, and there is an inner chamber inside of head of screw.The cross section of inner chamber is 90 ° fan-shaped being formed by stacking by the bar shaped of two quadratures, one and the circular of head of screw concentric and two central angles.Aforesaid each bar shaped, the axes intersect of its longitudinal centre line and head of screw, the two ends of bar shaped are the arcs with the head of screw concentric.Aforesaid circle and head of screw concentric, and circular diameter is less than the diameter of aforementioned bar shaped end arc.The aforesaid two fan-shaped centers of circle about head of screw become the centers symmetry, the two fan-shaped arcs and the arc concentric and the same radius of aforementioned bar shaped end.The top of inner chamber have one with head of screw be holistic plectane, have notch on this plectane.Notch is formed by stacking by a circular trough and a bar-shaped trough.The circular trough that constitutes notch overlaps with the circle of aforementioned formation inner chamber cross section in the plane.Constitute the bar-shaped trough of notch, its flat shape is identical with the bar shaped that constitutes the inner chamber cross section with size, and the longitudinal midline of this bar-shaped trough overlaps with two of aforementioned formation inner chamber cross section fan-shaped central angle angular bisectors.The bottom of knife bar be with knife bar be holistic cutter head.Knife bar is cylindrical, and cutter head stretches out from the two sides of knife bar bottom, and the cross section of cutter head is identical with the bar shape of aforementioned formation inner chamber cross section.Knife bar and cutter head all are in active relationship with notch, and cutter head can rotate in inner chamber and be in active relationship with the inwall of inner chamber.
Adopt such scheme, can reach following effect:
In the time of need screwing screw, only need knife bar and cutter head are inserted behind the inner chamber and turn clockwise from the notch of head of screw, when the cutter head side that promptly promotes inner chamber that turns clockwise 45 ° rotates and drive the whole rotation of screw.This moment, the unexpected landing of the driver bit that has caused when so just having stopped to exert oneself greatly improved the safety coefficient of operation because cutter head is enclosed in the inner chamber, and the upper end of cutter head has the plectane on inner chamber top to stop, cutter head can not skid off from inner chamber.Be rotated when putting in place at screw, only need screwdriver is rotated counterclockwise 45 °, cutter head just can be extracted out from notch, and it is very convenient to operate.
Description of drawings
Fig. 1 is the longitudinal sectional drawing that screwdriver of the present invention combines with screw;
Fig. 2 is the cross-sectional view of the inner chamber of invention;
Fig. 3 is the end face sketch map of the screw of invention;
Fig. 4 is the transverse cross-sectional view of the knife bar of invention.
Among the figure: 1. knife bar 2. cutter heads 3. shanks of screw 4. head of screws 5. notches 6. inner chambers
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further description.
The sub-assembly of rotary clamp type screwdriver and screw is made up of knife bar 1, cutter head 2, shank of screw 3, head of screw 4, notch 5 and inner chamber 6.Wherein head of screw 4 is in shank of screw 3 tops and as a whole with shank of screw 3.The outline of head of screw 4 is cylindrical, and there is an inner chamber 6 inside of head of screw 4.The cross section of inner chamber 6 is 90 ° fan-shaped being formed by stacking by the bar shaped of two quadratures, one and the circular of head of screw 4 concentrics and two central angles.Aforesaid each bar shaped, the axes intersect of its longitudinal centre line and head of screw 4, the two ends of bar shaped are the arcs with head of screw 4 concentrics.Aforesaid circle and head of screw 4 concentrics, and circular diameter is less than the diameter of aforementioned bar shaped end arc.The aforesaid two fan-shaped centers of circle about head of screw 4 become the centers symmetry, the two fan-shaped arcs and the arc concentric and the same radius of aforementioned bar shaped end.The top of inner chamber 6 has one to be holistic plectane with head of screw 4, has notch 5 on this plectane.Notch 5 is formed by stacking by a circular trough and a bar-shaped trough.The circular trough that constitutes notch 5 overlaps with the circle of aforementioned formation inner chamber 6 cross sections in the plane.Constitute the bar-shaped trough of notch 5, its flat shape is identical with the bar shaped that constitutes inner chamber 6 cross sections with size, and the longitudinal midline of this bar-shaped trough overlaps with two of aforementioned formation inner chamber 6 cross sections fan-shaped central angle angular bisectors.The bottom of knife bar 1 is to be holistic cutter head 2 with knife bar 1.Knife bar 1 is cylindrical, and cutter head 2 stretches out from the two sides of knife bar 1 bottom, and the cross section of cutter head 2 is identical with the bar shape of aforementioned formation inner chamber 6 cross sections.Knife bar 1 all is in active relationship with notch 5 with cutter head 2, and cutter head 2 can rotate in inner chamber 6 and be in active relationship with the inwall of inner chamber 6.
Claims (1)
1. the sub-assembly of rotary clamp type screwdriver and screw is made up of knife bar, cutter head, shank of screw, head of screw, notch and inner chamber, and it is characterized in that: head of screw is in shank of screw top and as a whole with shank of screw; The outline of head of screw is cylindrical, and there is an inner chamber inside of head of screw, and the cross section of inner chamber is 90 ° fan-shaped being formed by stacking by the bar shaped of two quadratures, one and the circular of head of screw concentric and two central angles; Aforesaid each bar shaped, the axes intersect of its longitudinal centre line and head of screw, the two ends of bar shaped are the arcs with the head of screw concentric; Aforesaid circle and head of screw concentric, and circular diameter is less than the diameter of aforementioned bar shaped end arc, and the aforesaid two fan-shaped centers of circle about head of screw become the centers symmetry; The two fan-shaped arcs and the arc concentric and the same radius of aforementioned bar shaped end; The top of inner chamber have one with head of screw be holistic plectane, have notch on this plectane, notch is formed by stacking by a circular trough and a bar-shaped trough; The circular trough that constitutes notch overlaps with the circle of aforementioned formation inner chamber cross section in the plane; Constitute the bar-shaped trough of notch, its flat shape is identical with the bar shaped that constitutes the inner chamber cross section with size, and the longitudinal midline of this bar-shaped trough overlaps with two of aforementioned formation inner chamber cross section fan-shaped central angle angular bisectors; The bottom of knife bar be with knife bar be holistic cutter head; Knife bar is cylindrical, and cutter head stretches out from the two sides of knife bar bottom, and the cross section of cutter head is identical with the bar shape of aforementioned formation inner chamber cross section; Knife bar and cutter head all are in active relationship with notch, and cutter head can rotate in inner chamber and be in active relationship with the inwall of inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101642423A CN101659044B (en) | 2009-08-24 | 2009-08-24 | Rotary clamp type screwdriver and screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101642423A CN101659044B (en) | 2009-08-24 | 2009-08-24 | Rotary clamp type screwdriver and screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101659044A CN101659044A (en) | 2010-03-03 |
| CN101659044B true CN101659044B (en) | 2012-05-02 |
Family
ID=41787402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101642423A Expired - Fee Related CN101659044B (en) | 2009-08-24 | 2009-08-24 | Rotary clamp type screwdriver and screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101659044B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982508A (en) * | 2014-04-16 | 2014-08-13 | 国家电网公司 | Antiskid anti-theft screw |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2331608A (en) * | 1942-05-28 | 1943-10-12 | Curtiss Wright Corp | Screw and method of making same |
| US4190091A (en) * | 1978-09-26 | 1980-02-26 | Sebastian Zuppichin | Screw, screwdriver and screw-holding attachment therefor |
| US5582548A (en) * | 1990-04-10 | 1996-12-10 | Czegledi; Imre | Method of manufacture of anti-slip fastener |
| CN2385130Y (en) * | 1999-06-21 | 2000-06-28 | 王锐 | Screw with hole |
| CN1334411A (en) * | 2000-07-14 | 2002-02-06 | 林昭围 | Screw, its forming mould and its screw driver |
| EP1117941B1 (en) * | 1998-10-06 | 2003-03-19 | Edler von der Planitz, Lutz | Screw and screwdriver for a non-slip screw/screw driver pairing |
| CN1555462A (en) * | 2001-09-17 | 2004-12-15 | 通用螺钉有限公司 | Screw head formation |
| CN101235841A (en) * | 2008-02-05 | 2008-08-06 | 游友民 | Drill clamping chuck self-tightening screw nail and its manufacture method |
-
2009
- 2009-08-24 CN CN2009101642423A patent/CN101659044B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2331608A (en) * | 1942-05-28 | 1943-10-12 | Curtiss Wright Corp | Screw and method of making same |
| US4190091A (en) * | 1978-09-26 | 1980-02-26 | Sebastian Zuppichin | Screw, screwdriver and screw-holding attachment therefor |
| US5582548A (en) * | 1990-04-10 | 1996-12-10 | Czegledi; Imre | Method of manufacture of anti-slip fastener |
| EP1117941B1 (en) * | 1998-10-06 | 2003-03-19 | Edler von der Planitz, Lutz | Screw and screwdriver for a non-slip screw/screw driver pairing |
| CN2385130Y (en) * | 1999-06-21 | 2000-06-28 | 王锐 | Screw with hole |
| CN1334411A (en) * | 2000-07-14 | 2002-02-06 | 林昭围 | Screw, its forming mould and its screw driver |
| CN1555462A (en) * | 2001-09-17 | 2004-12-15 | 通用螺钉有限公司 | Screw head formation |
| CN101235841A (en) * | 2008-02-05 | 2008-08-06 | 游友民 | Drill clamping chuck self-tightening screw nail and its manufacture method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101659044A (en) | 2010-03-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| ASS | Succession or assignment of patent right |
Owner name: NINGBO YINZHOU YUNFAN ENGINEERING CONSULTING CO., Free format text: FORMER OWNER: CHENGDU JUNFENG TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20120213 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610041 CHENGDU, SICHUAN PROVINCE TO: 315192 NINGBO, ZHEJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120213 Address after: 315192 Zhejiang City, Yinzhou District, the old Temple Temple Street, Changfeng old market to the south of the room eleventh 2-11 Applicant after: Ningbo Yinzhou Yunfan Engineering Consulting Co., Ltd. Address before: 610041, No. 118, East Bauhinia Road, Chengdu hi tech Zone, Sichuan Applicant before: Chengdu Junfeng Technology Development Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20120824 |